POST UTME DELSU 2020 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the dominant allele 'R'?
Question 2
In a population of Drosophila melanogaster, the frequency of the recessive allele 'b' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'BB'?
Question 3
A plant with the genotype 'Rr' is crossed with a plant with the genotype 'rr'. What is the probability that the offspring will have the genotype 'Rr'?
Question 4
A population of rabbits is growing at a rate of 20% per year. If the population is currently 1000 rabbits, how many rabbits will there be in 5 years?
Question 5
A diagram of a human digestive system is shown below. Identify the part labeled 'B'.
Question 6
A diagram of a plant cell is shown below. Identify the part labeled 'A'.
Question 7
A researcher is studying the effect of pH on the growth of Escherichia coli. The researcher measures the growth rate of the bacteria at different pH levels and plots the data on a graph. Which of the following types of graphs would best represent the data?
Question 8
A diagram of a plant cell is shown below. Identify the part labeled 'A'.
Question 9
A 35-year-old female patient presents with symptoms of hyperthyroidism. Which of the following hormones is most likely to be overproduced?
Question 10
The diagram below shows a cross-section of a plant root. Which of the following tissues is responsible for the absorption of water and minerals from the soil?
Question 11
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'Tt'. What is the probability that the offspring will have the genotype 'tt'?
Question 12
The process of digestion \begins in the mouth, where food is broken down by enzymes.
Question 13
A diagram of a titration setup is shown below. If the burette contains 0.1 M HCl and the initial volume is 10 mL, what is the concentration of the solution after adding 20 mL of NaOH?
Question 14
The human eye is able to detect a wide range of wavelengths of light. Which of the following structures is responsible for the detection of light?
Question 15
In the context of hormonal coordination, what is the primary function of the hypothalamus?
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